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In the year 2000 the first of a new class of distant solar system objects was discovered, orbiting the Sun at a distance greater than that of Neptune: the “extreme trans Neptunian objects (ETNOs).

Far from our own solar system, astronomers have finally watched what planetary scientists have long predicted but never ...

Hit-and-run collisions between embryonic planets during a critical period in the early history of the Solar System may account for some previously unexplained properties of planets, asteroids, and ...

The asteroid is currently located in the constellation of Lynx, at a distance of more than 1.9 million miles (3.2 million ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers were in ...

Astronomers have recently discovered "planet killer" asteroids hiding in the glare of our sun, and one of them could one day impact Earth. A total of three asteroids were found and have been dubbed ...

After the sun finally dies, billions of years in the future, Earth too will meet a grisly end. There are several ways that our home planet may be destroyed after the sun dies, possibly being swallowed ...

When I was a kid, the solar system was simple. There were nine planets and they all orbited in more-or-less circles around the sun. This same sun-and-a-handful-of-planets scheme repeated itself again ...

Université Paris Cité provides funding as a member of The Conversation FR. When Earth first formed, it was too hot to retain ice. This means all the water on our planet must have originated from ...

'We're showing that, everywhere we look now, there was some sort of magnetic field that was responsible for bringing mass to where the sun and planets were forming.' When you purchase through links on ...